code: def test_builder_config_float_type(self):
      for config in dataset_builder.MUJOCO_BUILDER_CONFIGS:
          if config.dataset_dir != "gym_mujoco":
              self.assertTrue(
                  config.step_metadata_keys,
                  f"Config {config.name} should contain step metadata.",
              )
          else:
              self.assertFalse(
                  config.step_metadata_keys,
                  f"Config {config.name} should NOT contain step metadata.",
              )
  
file_path: datasets/tensorflow_datasets/d4rl/dataset_builder_test.py
imports: import tensorflow
  from tensorflow_datasets.d4rl import dataset_builder
label_desc: Use image node_id 2 for calling the MujocoDatasetTest obj's underlying member method code with example usage: obj.test_builder_config_float_type() without return types